CVE-2006-3417

CVE-2006-3417 is a medium-severity vulnerability in Tor with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Tor client before 0.1.1.20 prefers entry points based on is_fast or is_stable flags, which could allow remote attackers to be preferred over nodes that are identified as more trustworthy "entry guard" (is_guard) systems by directory authorities.

Frequently asked questions

What is CVE-2006-3417?
Tor client before 0.1.1.20 prefers entry points based on is_fast or is_stable flags, which could allow remote attackers to be preferred over nodes that are identified as more trustworthy "entry guard" (is_guard) systems by directory authorities.
How severe is CVE-2006-3417?
CVE-2006-3417 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2006-3417 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-3417?
CVE-2006-3417 primarily affects Tor. In total, 68 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-3417?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-3417 published?
CVE-2006-3417 was published on 2006-07-07 and last updated on 2026-06-16.

References

Affected products (68)

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